Improvement in loom pattern-chains



UNITED STATES PATENT OFFICE.

VICTOR JAGGI, OF PHILADELPHIA, PENNSYLVANIA. I

IMPROVEMENT iN Loom PATTERN-CHAINS.

Specification forming part of LcttersPatentNo. 150,325, dated April 28,1874; application filed October 6, 187:3.

To all whom it may concern:

E@ a known um I, VICTOR' Meer, @f the,

'tion appertains to fully understand, make, and

use the same, reference being had to the ac-l companying' drawingsmakingl part ot' this specification, in which- Figurel a top or planview of the device embodying my invention, a number of the links of thechain heilig opened. Fig. 2 is a central vertical .section thereof. Fig.3 is a view of the inside of detached parts.

Similar letters of reference indicate corresponding parts in the severalfigures.

It is well. known that in vthe pattern-chain the removal ofthe links forchange in the pattern is attended with considerable inconvenience, owingto the diiiiculty of forcing out the 'pintles which connect the links.There also exists a great liability of loss of the pintles, whereby thechain is detached and thus rendered inoperative, and the separated partsthereof endanger adjacent portions ot'. the looln.

My invention is designed to remedy these defects; and consists informingthe links in ,sections or divisions, and uniting the sections by meansofthe pattern-pins, so that the links maybe conveniently separated, andthe pintles made correspondingly accessible. lt also consists inconstructing t-he pintlc solid with onefsection, and fitting itindepressions in the two adjacent sections, whereby the pintle is greatlystrengthened, and displacement thereof prevented. It also consists inshoulders on the sections, for preventinglateral motion thereof.

Referring to the drawings, A represents the links, which are constructedin sections B B formed by divisions of the links in their longitudinaland horizontal directions. O represents a pintle for connecting twoadjacent sections, and is cast or formed solid with one section, B. Adepression, D, is formed in the ears or portion of the section Bopposite to the pintle C, and a similar depression, D, is formed in acorresponding portion ofthe other section, B, so that when the twosections are together, the two depressions form a complete cavity in onelilik for the reception of the pintle of the adjacent link. In order tohold the two sec# tions, and thus connect the links, screws E arekpassed through the said sections, and their heads are ot' varyingdimensions for the purposes ot' the pattern, as is well known. The innerface of the central portion F ot' the pini tlc, or the part of thesection B that joins the pintle, is shouldered, and the innerl faceofthe portion G of the section B which corresponds to the portion F islikewise shouldered, said portion G in one section being arranged-between lthe ears ot the next section, and, the shoulders of the twosections engaging and being thus locked, the lateral pla-y of thesections is prevented, and thus the axial motion of thc links is innowisc interfered with.

Then the sections are attached to each other the links are iirmlyconnected, and the pintles completely elnhedded or inclosed, so as notto be exposed, whereby liability to displacement is overcome, andseparation of the links prevented.

lfVhen the pattern is`to be changed, the pintles are not to be drivenfrom the links to separate the chain; but the sections are merelyopened, the arrangement relative to the pattern is ett'ected, thesections are applied to cach other and the screws properly fittedthereto, whereby the chain is again in practical condition.

Having thus described my invention, what I cla-im as new, and desire tosecure by Letters Patent, is-

l. The pattern-chain link,formed in sections B B', united by means ot'the. pattern-pin, substantially as and for the purpose set forth.

2. The sections B B', provided with the solid pintle O and depressionsD, all constructed and operating substantially as and for the purposeset forth.

3. The sections B B', provided with the shoulders F G, substantially asand for the purpose set forth.

VICTOR JAGGI. Witnesses:

JOHN A. WIEDERSHEIM, JNO. A. BELL.

